Combined book with erasable cover and detachable pen



FIG. 1 is a front perspective view of a combined book with erasable cover and detachable pen, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a top plan view thereof. 

The ornamental design for a combined book with erasable cover and detachable pen, as shown and described. 